To make the skin firm, you need to do the following. First of all, we should try our best to maintain internal stability and endocrine coordination, such as insisting on exercise. Aerobic exercise can increase local skin elasticity, prevent cell aging and prevent skin relaxation, which should last for about half an hour to an hour at a time. Try to avoid staying up late and being tired, especially for women. Staying up late is very harmful to the skin. Try to ensure adequate sleep, which is conducive to liver detoxification. Choose a scientific diet and avoid eating too greasy and irritating food. Secondly, pay attention to the cleanliness of the local face. We can choose lotions or cosmetics that are relatively good for the skin, or we can choose masks that replenish water. Proper massage of the face is beneficial to local skin blood supply.